We use the switching power supply is 220v-48v, the room has air conditioning, air conditioning power in 6kw or so, the total power of this room in 17kw, DC current is 60A, the room has two tubes. Now do not know how much switching power supply losses, these devices may have 17kw power? This is the 17kw power meter on the show. Who heroes help me.
Are you going to calculate the actual power consumption of the switching power supply? This requires knowing the load current or load power of the switching power supply and the efficiency of the switching power supply.
General switching power supply efficiency (220v-48v) is greater than 80%, 80% efficiency, its power consumption is equal to the load / 80%.
Need to know the switching power supply load current or load power and switching power supply efficiency.
General switching power supply efficiency (220v-48v) is greater than 80%, 80% efficiency, its power consumption is equal to the load / 80%.
Glossary:
Switching power supply is the use of modern power electronics technology to control the switch on and off the time ratio, to maintain a stable output voltage of a power supply, switching power supply generally by the pulse width modulation (PWM) control IC and MOSFET composition. With the power electronics technology development and innovation, making switching power supply technology is constantly innovating. At present, the switching power supply to small, lightweight and efficient features are widely used almost all of the electronic equipment, electronic information industry is the rapid development of an indispensable power supply.
With the rapid development of power electronics technology, power electronic equipment and people's work and life increasingly close relationship, and electronic equipment are inseparable from the reliable power supply, into the 80's computer power to fully realize the switching power supply, the first to complete the computer Power supply, into the 90's switching power supply have entered a variety of electronic, electrical equipment, program-controlled switches, communications, electronic testing equipment, power supply, control equipment, power supplies have been widely used switching power supply, but also promote the rapid development of switching power supply technology
The energy meter shows "power", not power.
You want to know the actual shaft power of the electrical, the former level is connected to the AC power table, rather than the energy meter. Switching power supply upstairs said it was right.
